Quantum realisation of the SI ampere

Short Name: e-SI-Amp, Project Number: 15SIB08
Discharge of electricity lightning

 Using single-electron sources to realise the new ampere  


Single-electron sources that generate currents by transferring an exact number of electrons per cycle would be the most direct methods for the realisation of the new ampere. Therefore, they could provide a practical method for the realisation of the future SI ampere. This project developed the semiconductor device and instrumentation technologies required to implement direct and practical methods for the realisation of the new ampere based on the fixed value of the elementary charge (the magnitude of the electric charge carried by a single electron) which were introduced as part of the envisaged redefinition of the SI units.

Project website
Publications
Reference Ultralow DC Current Source Between 1 fA and 100 pA at TÜBİTAK UME
2019

IEEE Transactions on Instrumentation and Measurement

Interlaboratory Nanoamp Current Comparison With Subpart-Per-Million Uncertainty
2019

IEEE Transactions on Instrumentation and Measurement

Noise-optimized ultrastable low-noise current amplifier
2019

Review of Scientific Instruments

Electrometer Calibration With Sub-Part-Per-Million Uncertainty
2019

IEEE Transactions on Instrumentation and Measurement

Random-telegraph-noise by resonant tunnelling at low temperatures
2017

2017 IEEE Electron Devices Technology and Manufacturing Conference (EDTM)

Transport properties in silicon nanowire transistors with atomically flat interfaces
2017

2017 IEEE Electron Devices Technology and Manufacturing Conference (EDTM)

Ultrastable Low-Noise Current Amplifiers With Extended Range and Improved Accuracy
2016

IEEE Transactions on Instrumentation and Measurement

Other Participants
Aalto-korkeakoulusäätiö sr (Finland)
Commissariat à l'énergie atomique et aux énergies alternatives (France)
Korea Research Institute of Standards and Science (Korea, Republic of)
The Chancellor, Masters and Scholars of the University of Cambridge (United Kingdom)
University of Southampton (United Kingdom)